Multi-Function Jump Starter Car starter, portable charger for the automotive,mobile phones,computers and other products.Life Emergency Make sure you and your loved ones can get home when stranded. This will jump your 4.5 Liter gas or 3 Liter diesel vehicle engine around 30 times on a single charge. Advanced Safety Safety protection of short circuit,overcharge,over discharge and temperature.Ultra Compact Unlike traditional bulky jump starter packs,the unit is small enough to store in your glove box,and light enough to pack in your bag.Powerful USB Ports Good for charge multiple phones,tablets and other USB-charged devices.LCD screenThe LCD display accurately displays the remaining charge and output voltage,better to use of power and protect the device.Compass In the outdoors,with the compass we will not be lost in the trip,it could specify the right direction.Ultra-bright flashlight with SOSWhether you need light for any case, the ultra-bright dual LED flashlight in Boost have you covered. Built-in light modes, including SOS and emergency strobe.

ATTENTION Do not connect the red and black clamps together.At start-up,the red clip is connected to the positive terminal,the black clip is connected to the negative terminal.Do not connect the wrong positive or negative electrode. It might not work for jump starting when the battery is lower than 20 percents. Do not start the engine for more than 4 seconds.After each start-up,the starter needs to cool for at least 30 seconds before the next start up. Read the instructions before you use it.